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Finding the Fourth Proportional to 549,670.64, 758,594.40 and 307,951.68

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Solution

The fourth proportional to 549,670.64, 758,594.40 and 307,951.68 is: 425,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,670.64 : 758,594.40 = 307,951.68 : x
  2. Step 2: Convert to fraction form
    549,670.64/758,594.40 = 307,951.68/x
  3. Step 3: Cross multiply
    549,670.64x = 758,594.40 × 307,951.68
  4. Step 4: Simplify right side
    549,670.64x = 233,610,419,918.59
  5. Step 5: Solve for x
    x = 233,610,419,918.59/549,670.64
  6. Step 6: Final answer
    x = 425,000.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.